Maine Cosmetologist Practice Exam 2025 - Free Cosmetology Practice Questions and Study Guide

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What does the term “cuticle” refer to in hair anatomy?

The inner layer of hair

The outer layer of the hair shaft that protects the inner layers

The term “cuticle” in hair anatomy specifically refers to the outer layer of the hair shaft. This layer is crucial as it serves to protect the inner layers of the hair, including the cortex and medulla, which are responsible for the hair's strength, color, and overall structure. The cuticle is made up of overlapping, flat cells that lie flat against each other, much like shingles on a roof. This structure not only helps in protecting the inner components from damage but also plays a key role in the hair's shine and smoothness.

Given this definition, it is clear why identifying the cuticle as the outer layer that provides protection is accurate. Understanding the role of the cuticle helps in recognizing its importance in maintaining hair health and appearance, making it a fundamental concept in cosmetology and hair care practices.

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The scalp tissue surrounding the hair follicle

The hair growth region

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